No, you do NOT earn credits for restarting and completing an island in poptropica.
buy them
100 like every island
You go into the future and talk the the future you, and she/he will give you the medal.
Your credits are added to your account when you receive the Island Medallion. If you are in doubt about whether you have won, check the Star Menu (upper right) for your status, and it will show the last four or five things that have been added.
You can play using Early Access beginning June 3, 2009. You will need 500 credits (you get 100 credits for beating an island, or adults can buy credits). There will be limited walkthroughs or hints until June 10. (WikiAnswers will probably have them here first.)
The restart for an island is located on the island map at the upper left. Open the map and click the blue button (restart island) at the bottom left. If you have finished an island, you cannot earn more credits for beating it again.
Click on the small map in the upper right hand corner. The restart is the blue button at the lower left of the map. If you have finished an island, you cannot get credits for beating it again.
If you start off with no credits, then you have to buy the credits. I think $20 gets you 2000 credits. If you already have, let's say, 500 credits, than you have to buy more credits, also. You would need 1,500 credits, and 1,500c=$15.00
On 01/ 04/ 10. To get early access you have to buy a ticket to that island with credits. you can get credits by completing a island or buying credits. Buying credits cost REAL money. You have to have an adult help you buy credits. If u complete an island it will give you credits and you can be one of the first persons to get on Counterfit Island.
You mean on Poptropica? Well, I don't think you pay for them. But when you beat stuff on Poptropica (like islands and haunted house) you get credits. For beating islands and doing the haunted house you get 50 credits each.
There is no way besides winning them or buying them. Unless you can get someone else to play it for you. You can also earn credits for beating Earth Day or the Haunted House, which are mini-quests available in the Poptropica store.
No, you can't. After finishing an island, you cannot get more credits for it. You can refresh the island, but you won't get any more credits with the island medallion.